diff --git a/1-js/05-data-types/02-number/article.md b/1-js/05-data-types/02-number/article.md
index 6f9ddd95..547204b5 100644
--- a/1-js/05-data-types/02-number/article.md
+++ b/1-js/05-data-types/02-number/article.md
@@ -4,7 +4,7 @@ In modern JavaScript, there are two types of numbers:
1. Regular numbers in JavaScript are stored in 64-bit format [IEEE-754](https://en.wikipedia.org/wiki/IEEE_754-2008_revision), also known as "double precision floating point numbers". These are numbers that we're using most of the time, and we'll talk about them in this chapter.
-2. BigInt numbers, to represent integers of arbitrary length. They are sometimes needed, because a regular number can't exceed 253
or be less than -253
. As bigints are used in few special areas, we devote them a special chapter .
+2. BigInt numbers, to represent integers of arbitrary length. They are sometimes needed, because a regular number can't safely exceed 253
or be less than -253
. As bigints are used in few special areas, we devote them a special chapter .
So here we'll talk about regular numbers. Let's expand our knowledge of them.
@@ -53,7 +53,7 @@ Just like before, using `"e"` can help. If we'd like to avoid writing the zeroes
let ms = 1e-6; // six zeroes to the left from 1
```
-If we count the zeroes in `0.000001`, there are 6 of them. So naturally it's `1e-6`.
+If we count the zeroes in `0.000001`, there are 6 of them. So naturally it's `1e-6`.
In other words, a negative number after `"e"` means a division by 1 with the given number of zeroes:
@@ -329,7 +329,7 @@ let num = +prompt("Enter a number", '');
alert( isFinite(num) );
```
-Please note that an empty or a space-only string is treated as `0` in all numeric functions including `isFinite`.
+Please note that an empty or a space-only string is treated as `0` in all numeric functions including `isFinite`.
```smart header="Compare with `Object.is`"
diff --git a/figures.sketch b/figures.sketch
index aa3ecfca..88f3d19c 100644
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