prime numbers less than 13

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
prime numbers less than 13	1.6	0.6	3492	97	26
prime	1.64	0.8	6240	100	5
numbers	0.79	0.2	2155	66	7
less	0.12	0.6	2209	44	4
than	1.7	1	9451	32	4
13	1.94	0.3	4539	17	2

Keyword	CPC	PCC	Volume	Score
prime numbers less than 13	1.33	0.2	8851	43
prime numbers less than 14	0.22	0.5	272	59
prime numbers less than 15	1.39	0.8	4313	53
prime numbers less than 12	1.71	0.6	4115	7
prime numbers less than 150	0.26	0.3	3706	23
prime numbers less than 100	0.48	0.3	7252	33
prime numbers less than 1000	0.31	1	9808	95
prime numbers less than 11	1.51	0.5	1925	38
prime numbers less than 10000	1.43	0.7	1236	32
prime numbers less than 18	0.91	0.3	3725	5
prime numbers less than 19	1.32	0.2	5371	30
prime numbers less than 17	1.31	0.9	3124	45
prime numbers less than 31	0.41	0.9	3119	38
prime numbers less than 30	0.78	0.7	978	26
how many prime numbers are there less than 13	1.31	0.5	4664	22