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30 is the lcm of the prime numbers of 2, 3 and 5

Q: Which of the number can be divided by 2 and 3 and5?

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lcm(2, 3, 4, 5) = 60.

2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.

No. It can be written as -2/3.

If the number can be divided by the "highest exponents of all the prime factors" of another number, it is divisible by that number. For the number 6, any number that can be divided by 2 and by 3 can be divided by 6, because its prime factors are 2 and 3. Since 2 is a factor, you could also say "any even number divisible by 3". Example : 15366 is divisible by 6 because it can be divided by 2 (even) and by 3 (=5122). Confirming this, 15366 divided by 6 = 2561

59

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120

300

0.6667

lcm(2, 3, 4, 5) = 60.

A number divided by 2 its reminder is 1, A number divided by 3 its reminder is 2, A number divided by 4 its reminder is 3, A number divided by 5 its reminder is 4, A number divided by 6 its reminder is 5, A number divided by 7 its reminder is 6, A number divided by 8 its reminder is 7, A number divided by 9 its reminder is 8, A number divided by 10 its reminder is 9 what is that number?

6

An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. 3 is an odd number.

2*(x + 21) = 3*abs(x - 5) => x = -5.4 or x = 57.

No. It can be written as -2/3.

15

If the number can be divided by the "highest exponents of all the prime factors" of another number, it is divisible by that number. For the number 6, any number that can be divided by 2 and by 3 can be divided by 6, because its prime factors are 2 and 3. Since 2 is a factor, you could also say "any even number divisible by 3". Example : 15366 is divisible by 6 because it can be divided by 2 (even) and by 3 (=5122). Confirming this, 15366 divided by 6 = 2561

2 and 3