20 Prime

How many prime numbers?

Generate the first 20 Prime numbers

Define a prime number:

A number with 2 factors 1 and itself

The first 20 Prime numbers

#	Prime Number	Math	Sum
1	2	0 + 2	2
2	3	2 + 3	5
3	5	5 + 5	10
4	7	10 + 7	17
5	11	17 + 11	28
6	13	28 + 13	41
7	17	41 + 17	58
8	19	58 + 19	77
9	23	77 + 23	100
10	29	100 + 29	129
11	31	129 + 31	160
12	37	160 + 37	197
13	41	197 + 41	238
14	43	238 + 43	281
15	47	281 + 47	328
16	53	328 + 53	381
17	59	381 + 59	440
18	61	440 + 61	501
19	67	501 + 67	568
20	71	568 + 71	639

What is the Answer?

71

How does the Prime Numbers Calculator work?

Shows up to 3000 prime numbers and a cumulative sum
This calculator has 1 input.

What 1 formula is used for the Prime Numbers Calculator?

Prime Numbers are number which have no divisors other than 1 and itself

For more math formulas, check out our Formula Dossier

What 6 concepts are covered in the Prime Numbers Calculator?

divisibility: Determine factors (whole numbers) for a given number
factor: a divisor of an integer n, also called a factor of n, is an integer m that may be multiplied by some integer to produce n.
number: an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
prime number: a natural number greater than 1 that is not a product of two smaller natural numbers.
prime numbers: Positive numbers with no other factors but 1 and the number itself
sum: the total amount resulting from the addition of two or more numbers, amounts, or items

Example calculations for the Prime Numbers Calculator

Prime Numbers Calculator Video

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