Factors of 90 in pairs

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

The number 90 is a composite number. So, 90 has more than one factor pair.

These are all the factor pairs of 90:

• 1,90
• 2,45
• 3,30
• 5,18
• 6,15
• 9,10

Here is how to find the factor pairs for the number 90:

• 90 divided by 1 is 90. So, (1, 90) is a factor pair of 90
• 90 divided by 2 is 45. So, (2, 45) is a factor pair of 90
• 90 divided by 3 is 30. So, (3, 30) is a factor pair of 90
• 90 divided by 5 is 18. So, (5, 18) is a factor pair of 90
• 90 divided by 6 is 15. So, (6, 15) is a factor pair of 90
• 90 divided by 9 is 10. So, (9, 10) is a factor pair of 90

Factor pairs of 90 that ads up to a number:

• The factors of 90 that adds up to 91 are 1 and 90
• The factors of 90 that adds up to 92 are 2 and 45
• The factors of 90 that adds up to 93 are 3 and 30
• The factors of 90 that adds up to 95 are 5 and 18
• The factors of 90 that adds up to 96 are 6 and 15
• The factors of 90 that adds up to 99 are 9 and 10

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 90 is 2•3²•5.

The prime factors of 90 are 2, 3 and 5. It is the list of the integer's prime factors.