Q: What are the numbers 3 and 5 callde in the multiplication sentence 3x5 =15?

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Here is one factor tree of 300: 300 20 x 15 (4x5) x (3x5) ((2x2)x5) x (3x5) You have reduced it to prime numbers, so you are finished. The factors of 300 are 2, 2, 3, 5, and 5.

3x5

4^3x5^2

4 = 4, and 4 = 2 x 2, so either a single prime number to the power 4-1 (23, 33, etc.), or two different prime numbers, each to the power 2-1, for example, 2x3, 2x5, 3x5, etc.

Any numbers that don't have common prime factors will do; for example, 23 and 32; 2x3 and 5x7, 3x5 and 2x7, etc.Any two consecutive numbers will have no common factor, for example, 8 and 9 (the first example I gave above), or 100 and 101. However, in the second example, 101 is not a composite number.

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The generalisation is that multiplication is Abelian (or commutative) for numbers.

Commutivity of multiplication or the commutative property of multiplication.

3x5=15 3 x5

The answer of a multiplication problem ex. 3x5=15 15 would be the product

30

The answer is -15. Here are the sign rules to multiplication. If you multiply two numbers with the same sign, the result will be positive. If you multiply two numbers with opposite signs, the result will be negative.

3 x 7 = 3 x (5 + 2) And since multiplication is distributive over addition, 3 x (5 + 2) = 3 x 5 + 3 x 2

Bob had 3 crates. He had 5 calculus textbooks in each. How many calculus textbooks in all? 15 calculus textbooks.

Multiplication is done before addition, so it will be done before the plus. The result is:35 + 3 x 5 = 50

A product is the result of multiplication, and a sum is the result of addition. Multiplication and addition are alike in that multiplication is really just repeated addition. For example, to multiply 3x5 is the same as 3+3+3+3+3 or 5+5+5. These will all result in either the product of 15 or the sum of 15.

Divide the area of the windows by the area of the sheets. Note: 3x5 and 2x4 are not areas, they are numbers. And you don't say how big the sheets are, so it is difficult to be helpful.

1080 = 2^3x3^3x5 200= 2^3x5^2 LCM (1080,200) = 2^3x3^3x5^2 = 1800