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What is the GCF and the LCM of 45 and 75 using prime factorization?
Wiki User
∙ 8y ago
3 x 5 x 5 = 75
3 x 5 x 7 = 105
The LCM is: 525
Wiki User
∙ 13y ago
Wiki User
∙ 8y ago2 x 2 x 2 x 3 x 3 = 72
3 x 5 x 7 = 105
2 x 2 x 2 x 3 x 3 x 5 x 7 = 2520, the LCM
Wiki User
∙ 8y ago3 x 3 x 5 = 45
3 x 5 x 5 = 75
3 x 5 = 15, the GCF
3 x 3 x 5 x 5 = 225, the LCM
Wiki User
∙ 9y agonobody answered this question whats up your mind
Wiki User
∙ 8y ago3 x 5 x 5 = 75
3 x 5 x 7 = 105
3 x 5 x 5 x 7 = 525, the LCM
Wiki User
∙ 7y ago3 x 5 x 5 = 75
2 x 2 x 5 x 5 = 100
2 x 2 x 3 x 5 x 5 = 300, the LCM
Wiki User
∙ 9y agoThe prime factors of 45 are 3 * 3 * 5.
The prime factors of 75 are 3 * 5 * 5.
So the greatest common factor is 3 * 5 = 15.
Wiki User
∙ 11y agoThe GCF is 15.
Wiki User
∙ 11y agoIt is 525
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