Factors of 642 in pairs

Factors are pairs of numbers which, if multiplied together, give the original number.

The number 642 is a composite number. So, 642 has more than one factor pair.

These are all the factor pairs of 642:

• 1,642
• 2,321
• 3,214
• 6,107

Here is how to find the factor pairs for the number 642:

• 642 divided by 1 is 642. So, (1, 642) is a factor pair of 642
• 642 divided by 2 is 321. So, (2, 321) is a factor pair of 642
• 642 divided by 3 is 214. So, (3, 214) is a factor pair of 642
• 642 divided by 6 is 107. So, (6, 107) is a factor pair of 642

Factor pairs of 642 that ads up to a number:

• The factors of 642 that adds up to 643 are 1 and 642
• The factors of 642 that adds up to 644 are 2 and 321
• The factors of 642 that adds up to 645 are 3 and 214
• The factors of 642 that adds up to 648 are 6 and 107

Note 1: if we change the order of all pairs above, we can double the number of pairs. We choose not to show them.
Note 2: do not confuse these pairs with prime factors. See below some info:

The factorization or decomposition of 642 is 2•3•107.

The prime factors of 642 are 2, 3 and 107. It is the list of the integer's prime factors.