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Do you need to make a list of multiples of 7 to find the LCM of 30 and 7?
Wiki User
∙ 11y ago
You can, but there's a shortcut. If you can see that 7 and 30 share no common factors other than 1, the LCM is their product (210).
Wiki User
∙ 11y ago
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Do you need to make a list of multiples of 7 to find the LCMof30 and 7?
You can, or you can just multiply them together.
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Do you need to make a list of multiples of 7 to find the least common multiple of 30 and 7?
You can but you don't need to. Since 30 and 7 don't have any common prime factors, their LCM is their product, 210.
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