90

90 has factors of 2 and 45.

2⋅45

45 has factors of 3 and 15.

2⋅3⋅15

15 has factors of 3 and 5.

2⋅3⋅3⋅5

2⋅3⋅3⋅5

Since 90 has factors other than 90 and 1, 90 is a composite number.

90 is a composite number

Determine if Prime or Composite 90

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# Determine if Prime or Composite 90

90

90 has factors of 2 and 45.

2⋅45

45 has factors of 3 and 15.

2⋅3⋅15

15 has factors of 3 and 5.

2⋅3⋅3⋅5

2⋅3⋅3⋅5

Since 90 has factors other than 90 and 1, 90 is a composite number.

90 is a composite number

Determine if Prime or Composite 90