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(4 times 3) plus 2 plus 1

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12y ago
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Uttam Chand

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2y ago

5/15

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Immanuel Cremin

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2y ago
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Q: How do you get the number 15 using only 1 2 3 and 4?
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Related questions

Why isn't 15 a prime number?

A number is prime if it has only 1 and itself as factors. For example, 7 is a prime number because it has only 1 and 7 as factors. 15 isn't a prime number because it has 1, 3, 5, and 15 as factors.


What goes into 17 and 15?

17 is a prime number, and therefore the only number that goes into it that is less than 15 is 1. The only factor that the two numbers share is 1.


What is cardinality of 15?

The cardinality of 15 is equal to the number of elements in the set. Since 15 is only one number, its cardinality is 1.


How do you get 15 using only 4 fours?

4*4 - 4/4 = 16 - 1 = 15.


What number goes into 8 and 15?

8=2*2*2*1 15=5*3*1 the only whole number that both are divisibl by is 1.


What number goes into 12 and14 and 15 evenly?

Only the number one (1) does.


Why is 15 not a prime number?

15 is not a prime number because it is not only divisible by 1 and itself it is also divisible by 3.


What is the greatest common factor of 15 11?

1 The factors of 15 are 1, 3, 5, and 15. 11 is a prime number with only the factors 1 and 11 The only factor they share is 1.


What number does not belong 15 63 8 50?

Take your pick: 15 is the only number which is a product of 2 primes (3*5). 63 is the only number that is the products of three odd primes (3*3*7) 8 is the only cube number (22) 50 is the only number that is not one less than a square number (15=42-1, 63 = 82-1, 8 = 32-1).


What is the meaning of composite in math?

Composite numbers are numbers which are divisible by another number other than 1 and the number itself. Ex 1: 15 is divisible by 1, 3, 5 and 15. So, 15 is a composite number. Ex 2: 3 is divisible by 1 and 3 only. So, such numbers which are only divisible by 1 and the number itself are known as Prime numbers.


What is the greatest common factor of 15 and 13?

One because thirteen is a prime number meaning that only on and itself goes into this number. Seince 13 does not go into 15 the GCF has to be one. (That is the only number that goes into both.)The GCF is 1.It is: 1


What number goes into 15 20 and 24?

The only common factor of 15, 20 and 24 is 1.